21641342

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{4157}}^1$

素因数の和:4315

約数の個数: 16

約数和(自身を含む): 34428240

約数和(自身を除く): 12786898

約数列:

[1, 2, 19, 38, 137, 274, 2603, 4157, 5206, 8314, 78983, 157966, 569509, 1139018, 10820671, 21641342]

約数ペア:

[(1, 21641342), (2, 10820671), (19, 1139018), (38, 569509), (137, 157966), (274, 78983), (2603, 8314), (4157, 5206)]